Finding the Fourth Proportional to 9,141.06, 13,711.67 and 2,215.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,141.06 : 13,711.67 = 2,215.56 : x
2. Step 2: Convert to fraction form
   9,141.06/13,711.67 = 2,215.56/x
3. Step 3: Cross multiply
   9,141.06x = 13,711.67 × 2,215.56
4. Step 4: Simplify right side
   9,141.06x = 30,379,027.59
5. Step 5: Solve for x
   x = 30,379,027.59/9,141.06
6. Step 6: Final answer
   x = 3,323.36